US2976162A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Briquetting granular material
Assignee: Johns Manville Corp
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Filing: 1958-07-03
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Granted: 1961-03-21
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Expires: 1978-07-03
Abstract
No abstract record available.
Inventors
- 👤 Wendell G Ekdahl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 09:00
CPC Classifications
C; C03; C03C; C03C1/00; C03C1/02; C03C1/026
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
105 words
A BRIQUET FOR USE IN CHARGING FINELY DIVIDED MINERAL FURNISH INGREDIENTS TO A MELTING FURNACE CONSISTING ESSTENTIAL OF A COMPRESSED MASS OF APPROXIMATELY 80 TO 95% BY WEIGHT OF FINELY DIVIDED MINERAL FURNISH INGREDIENTS AND A BINDER, SAID B INDER CONSISTING ESSENTIALLY OF APPROXIMATELY 1/2 TO 6% BY WEIGHT OF A MIXTURE OF APPROXIMATELY 75 TO 95% BY WEIGHT OF A NON-SWELLING CLAY MINERAL AND APPROXIMATELY 5 TO 25% BY WEIGHT OF A SWELLABLE CLAY MINERAL OF FINE PARTICLE SIZE, AND APPROXIMATELY 2 TO 6% BY WEIGHT OF GELATINIZED STARCH, TOGETHER WITH A TOTAL MOISTURE CONTENT WHEN FORMED OF APPROXIMATELY 3 TO 8% BY WEIGHT.
Claim 2
Dependent Claim
105 words
A BRIQUET FOR USE IN CHARGING FINELY DIVIDED MINERAL FURNISH INGREDIENTS TO A MELTING FURNACE CONSISTING ESSTENTIAL OF A COMPRESSED MASS OF APPROXIMATELY 80 TO 95% BY WEIGHT OF FINELY DIVIDED MINERAL FURNISH INGREDIENTS AND A BINDER, SAID B INDER CONSISTING ESSENTIALLY OF APPROXIMATELY 1/2 TO 6% BY WEIGHT OF A MIXTURE OF APPROXIMATELY 75 TO 95% BY WEIGHT OF A NON-SWELLING CLAY MINERAL AND APPROXIMATELY 5 TO 25% BY WEIGHT OF A SWELLABLE CLAY MINERAL OF FINE PARTICLE SIZE, AND APPROXIMATELY 2 TO 6% BY WEIGHT OF GELATINIZED STARCH, TOGETHER WITH A TOTAL MOISTURE CONTENT WHEN FORMED OF APPROXIMATELY 3 TO 8% BY WEIGHT.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-03-20 | 1964-09-19 | 1965-03-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-03-20 | 1968-09-19 | 1969-03-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-03-20 | 1972-09-19 | 1973-03-21 | $7700.00 | Window Closed / Lapsed |